However, the same student writing for a general audience should cite his or her source, as this information would not be common knowledge to the average reader. The following are examples of statements that need citation: Between 1990 and 2002, the United States was the recipient of $1.27 trillion in direct foreign investment.
Vitamin C iontophoresis is very effective for removing fine wrinkles and treating post-inflammatory hyper-pigmentation and melasma. It has become one of the major methods of maintaining healthy skin.After the treatment: Patients will be able to notice a natural glow immediately after treatment.his method can be used to drive a drug that cannot normally penetrate the skin across the barrier, in this case Vitamin C. A weekly iontophoresis treatment promote formation of collagen and continuously inhibit the formation of melanin pigment.
APPLIED TO THE SKIN: View Sources. 1  For vitamin B12 deficiency or pernicious anemia: cyanocobalamin doses of 300-10,000 mcg (microgram) daily have been used. 2  However, some evidence suggests that the most effective oral dose is between 647-1032 mcg/day. For high blood levels of homocysteine: vitamin B12 500 mcg in combination with 0.5-5 mg folic acid and 16.5 mg pyridoxine has been used. 2  For atopic dermatitis (eczema): a specific vitamin B12 0.07% cream (Regividerm) applied twice daily has been used.